Line a baking sheet with non-stick foil or parchment paper.
Turn your microwave to 50% power and microwave the semi-sweet chocolate and a ½ teaspoon oil in 30-second intervals, stirring after each interval, until smooth. When the chocolate is fully melted, add in the peppermint extract and stir until combined. This took about 2 minutes total.
16 oz semi-sweet baking chocolate bar, 1 teaspoon vegetable oil or coconut oil, ½ teaspoon peppermint extract
Pour chocolate onto a lined baking sheet and use a rubber spatula/offset spatula to smooth it out into an even layer. Place the pan in the refrigerator for 5-7 minutes or until the chocolate is almost set.
Turn your microwave to 50% power and microwave the white chocolate and remaining ½ teaspoon oil in 30-second intervals, stirring after each interval, until smooth.
16 oz white baking chocolate bar, 1 teaspoon vegetable oil or coconut oil
Then carefully spread white chocolate into an even layer over the semi-sweet chocolate. Sprinkle with crushed candy canes and refrigerate until hardened, 30-60 minutes.
4 candy canes
Once completely set, peel away the parchment paper. Then, using a sharp knife, cut it into bite-sized pieces or break it by hand.
Video
Notes
Tips and Tricks
High Quality Chocolate: Ghirardelli, Guittard, or Baker's baking chocolate is what I recommend and can be found in the baking aisle of the grocery store. I don't recommend chocolate chips or candy melts, but almond bark can be used in a pinch.
Variations: You can make just white chocolate peppermint bark or just semi-sweet chocolate bark- don't layer the two chocolates. Add nuts, sprinkles, or M&Ms as fun toppings.
Layers: If you let the semi-sweet layer set up too much before adding the white chocolate, it might cause the two layers to separate when cutting.
Storage: Store peppermint bark in an airtight container in the refrigerator for up to 3 weeks.